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138 lines
4.1 KiB
C++
138 lines
4.1 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkTextureMapToPlane.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkTextureMapToPlane
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* @brief generate texture coordinates by mapping points to plane
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*
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* vtkTextureMapToPlane is a filter that generates 2D texture coordinates
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* by mapping input dataset points onto a plane. The plane can either be
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* user specified or generated automatically. (A least squares method is
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* used to generate the plane automatically.)
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*
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* There are two ways you can specify the plane. The first is to provide a
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* plane normal. In this case the points are projected to a plane, and the
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* points are then mapped into the user specified s-t coordinate range. For
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* more control, you can specify a plane with three points: an origin and two
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* points defining the two axes of the plane. (This is compatible with the
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* vtkPlaneSource.) Using the second method, the SRange and TRange vectors
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* are ignored, since the presumption is that the user does not want to scale
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* the texture coordinates; and you can adjust the origin and axes points to
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* achieve the texture coordinate scaling you need. Note also that using the
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* three point method the axes do not have to be orthogonal.
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*
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* @sa
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* vtkPlaneSource vtkTextureMapToCylinder
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* vtkTextureMapToSphere vtkThresholdTextureCoords
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*/
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#ifndef vtkTextureMapToPlane_h
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#define vtkTextureMapToPlane_h
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#include "vtkFiltersTextureModule.h" // For export macro
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#include "vtkDataSetAlgorithm.h"
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class VTKFILTERSTEXTURE_EXPORT vtkTextureMapToPlane : public vtkDataSetAlgorithm
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{
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public:
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vtkTypeMacro(vtkTextureMapToPlane,vtkDataSetAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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/**
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* Construct with s,t range=(0,1) and automatic plane generation turned on.
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*/
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static vtkTextureMapToPlane *New();
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//@{
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/**
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* Specify a point defining the origin of the plane. Used in conjunction with
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* the Point1 and Point2 ivars to specify a map plane.
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*/
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vtkSetVector3Macro(Origin,double);
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vtkGetVectorMacro(Origin,double,3);
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//@}
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//@{
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/**
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* Specify a point defining the first axis of the plane.
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*/
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vtkSetVector3Macro(Point1,double);
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vtkGetVectorMacro(Point1,double,3);
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//@}
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//@{
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/**
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* Specify a point defining the second axis of the plane.
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*/
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vtkSetVector3Macro(Point2,double);
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vtkGetVectorMacro(Point2,double,3);
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//@}
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//@{
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/**
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* Specify plane normal. An alternative way to specify a map plane. Using
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* this method, the object will scale the resulting texture coordinate
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* between the SRange and TRange specified.
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*/
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vtkSetVector3Macro(Normal,double);
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vtkGetVectorMacro(Normal,double,3);
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//@}
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//@{
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/**
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* Specify s-coordinate range for texture s-t coordinate pair.
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*/
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vtkSetVector2Macro(SRange,double);
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vtkGetVectorMacro(SRange,double,2);
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//@}
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//@{
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/**
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* Specify t-coordinate range for texture s-t coordinate pair.
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*/
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vtkSetVector2Macro(TRange,double);
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vtkGetVectorMacro(TRange,double,2);
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//@}
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//@{
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/**
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* Turn on/off automatic plane generation.
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*/
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vtkSetMacro(AutomaticPlaneGeneration,int);
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vtkGetMacro(AutomaticPlaneGeneration,int);
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vtkBooleanMacro(AutomaticPlaneGeneration,int);
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//@}
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protected:
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vtkTextureMapToPlane();
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~vtkTextureMapToPlane() {}
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int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
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void ComputeNormal(vtkDataSet *output);
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double Origin[3];
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double Point1[3];
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double Point2[3];
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double Normal[3];
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double SRange[2];
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double TRange[2];
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int AutomaticPlaneGeneration;
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private:
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vtkTextureMapToPlane(const vtkTextureMapToPlane&) VTK_DELETE_FUNCTION;
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void operator=(const vtkTextureMapToPlane&) VTK_DELETE_FUNCTION;
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};
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#endif
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